CN112727713B - Blade deicing system of wind generating set and wind generating set - Google Patents
Blade deicing system of wind generating set and wind generating set Download PDFInfo
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- CN112727713B CN112727713B CN202110011975.4A CN202110011975A CN112727713B CN 112727713 B CN112727713 B CN 112727713B CN 202110011975 A CN202110011975 A CN 202110011975A CN 112727713 B CN112727713 B CN 112727713B
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- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention provides a blade deicing system of a wind generating set and the wind generating set, wherein the wind generating set comprises a cabin, a hub cover, blades and a deicing system; the deicing system comprises an air blower, a heating device, a one-way multi-air slip ring and three blade ventilation pipelines; an air inlet communicated with the multiple air slip rings is communicated with an air outlet of the heating device through a pipeline, a ventilating pipeline communicated with the blades from the rotor side of the multiple air slip rings is respectively communicated with a ventilating pipeline of the blades, and a through air slip ring is respectively arranged in the ventilating pipeline communicated with the blades from the rotor side of the multiple air slip rings; the one-way multi-air slip ring is arranged on a first support, and the first support is arranged in the hub cover. The invention relates to a gas-heated deicing technology, and provides an integrated gas-heated deicing structure without replacing a sliding ring.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a blade deicing system of a wind generating set and the wind generating set.
Background
The wind generating set is usually installed in mountainous areas or plateau areas with high altitude, low temperature and high humidity, the outer surface of the wind turbine blade is very easy to be coated with ice in winter along with the reduction of temperature and the increase of humidity, the ice coating of the blade can not only cause the machine set to stop, but also cause the vibration of the turbine set or the distortion of a power factor and endanger the operation of the machine set, thereby causing great economic loss to a wind field and also seriously threatening the operation safety of equipment.
The anti-icing and deicing technologies of the blades of the wind generating set are divided into two types, namely passive anti-icing and active deicing, and the active deicing is mostly applied by air heating, electric heating and other technologies.
The following are some of the relevant prior art:
1. a high-power wind driven generator blade modularized air-heating anti-icing method and an installation method are disclosed, and the application number is 201410461139.6.
2. A high-power wind driven generator blade modularized air-heating anti-icing system is disclosed in application number 201420521335.3.
3. ANTI-ICING AND DEICING METHOD AND DEVICE FOR HIGH-POWER WIND TURBINE BLADES, with application number 20170260969.
4. The fan blade anti-icing deicing system has application number 201711427367.1.
5. De-icing of rotor blades is disclosed under application number 201180030653.9.
6. A deicing control method, a deicing device and a deicing system for blades of a wind driven generator are disclosed in application number 201610730464.7.
7. An anti-icing and deicing wind power blade and a manufacturing method thereof are disclosed, and the application number is 201710916688.1.
8. An anti-icing and deicing system for blades of a wind generating set is disclosed with the application number of 201711068607.3.
9. A wind generating set and a blade deicing system thereof have the application number of 201711097674.8.
10. A wind turbine rotor blade de-icing apparatus having application number 201410015789.8.
11. DE-ICING SYSTEM FOR A WIND TURBINE BLADE, application No. 20170254316.
Through retrieval discovery, blade deicing system patent is more at present, designs multiple technical route such as hot-blast, electric heating, but above-mentioned patent except that VTT technical development center applied patent has great scope application, commercialization comparatively ripe, other patents the technique all faces with the problem with high costs, realizes difficulty or the practicality is lower, and most patents belong to the improvement of small scale on the basis of foreign patent, do not realize the real innovation in the technique.
Disclosure of Invention
The invention relates to a gas-heated deicing technology, provides an integrated gas-heated deicing structure without replacing a sliding ring, and has the advantages of obvious cost advantage, short construction period, simple structure, high safety and good application prospect compared with the prior art.
The deicing system comprises an air blower, a heating device, a one-way multi-air slip ring and three blade ventilating ducts; the one-way multi-air slip ring comprises an air inlet, a one-way multi-air slip ring rotor and a ventilation pipeline, wherein the air inlet is communicated with the multi-air slip ring; an air inlet communicated with the multi-air-slip ring is communicated with an air outlet of the heating device through a pipeline, a ventilating pipeline communicated with the blades on the rotor side of the multi-air-slip ring is respectively communicated with a ventilating pipeline of the blades, and a through air-slip ring is respectively arranged in the ventilating pipeline communicated with the blades on the rotor side of the multi-air-slip ring; the one-way multi-air slip ring is arranged on a first support, and the first support is arranged in the hub cover.
The main operation principle of the system is as follows: after being heated by a heating device, cold air extracted by an air blower arranged in a cabin is distributed to 3 blades through one-way multi-air slip rings arranged on a hub bracket I, hot air distributed by each blade is blown to the blade tip area of the blade through the through air slip ring and a blade ventilating duct, and hot air blown to the blade tip area returns to the hub through a cavity in a web plate, so that the blades and the hub are heated and deiced. Wherein the through gas slip ring functions to transport gas.
The invention designs a one-way multi-gas slip ring channel structure which can guide hot gas flow generated by a heating device to 3 blades through the device; the invention reduces 3 heating devices arranged in the blade in the prior art into a centralized heating device arranged in the engine room, realizes the integration of the heating and air supply device, reduces the system cost and the engineering construction amount, and improves the operation stability of the equipment. The invention designs a single-channel air slip ring structure, which avoids the damage to a pipeline or a wind shield when blades rotate and run in a variable pitch mode.
The one-way multi-air-slip ring comprises a rotor part and a stator part, wherein the rotor part comprises a first bracket, a one-way multi-air-slip ring rotor and a ventilation pipeline which leads the rotor side of the one-way multi-air-slip ring to the blades; the stator part comprises an air inlet communicated with a plurality of air slip rings.
Preferably, the blade root baffle is further included, and a manhole, a blade root baffle air inlet hole and an overflow hole are formed in the blade root baffle; the manhole is a maintenance man access passage, the blade ventilation pipeline passes through the blade root baffle air inlet, and a protective net is installed at the overflow hole.
The overflow holes on the blade root baffle plate play a role in guiding air, so that the airflow sent to the blades from the cabin overflows from the blades, and the low-wind-resistance airflow circulation is realized.
Preferably, the structure of the blade root baffle air inlet hole is a circular plate with a plurality of circular holes. The sundries in the blade can be effectively prevented from entering the hub.
The invention also provides a wind generating set, which comprises a cabin, a hub cover, blades and the wind generating set blade deicing system.
Preferably, the wheel hub further comprises a conductive sliding ring, the conductive sliding ring is mounted on the second support, the second support is mounted in the wheel hub cover, and the first support and the second support are integrated.
Preferably, the device further comprises a shifting fork bracket for mounting the conductive sliding ring, wherein the shifting fork bracket is a tubular structure, and a cable of the conductive sliding ring penetrates through the tubular structure. The shifting fork bracket is arranged on the engine room and used for fixing the stator side of the one-way multi-air slip ring.
The fact that the sliding ring does not need to be replaced means that the original conductive sliding ring of the unit does not need to be replaced, when the deicing scheme of the comparison file is installed, the heating system needs to be installed in the blade, parts such as a power supply, control and communication need to be newly added, the original conductive sliding ring needs to be replaced, and manufacturing cost is high. The integrated type wind power generation system has the integrated significance that the one-way multi-air-slide ring is arranged to distribute the hot air to the three blades, the heating and control systems originally distributed on the three blades are concentrated in the engine room, the cost is lower, the system is simple, the communication control is more reliable, the construction is convenient, and the like, and the wind power generation system has a plurality of advantages.
Preferably, a hub wind shield is arranged between the engine room and the hub cover, and a cooling air vent is formed in the hub wind shield.
The hub wind shield is made of transparent materials, and is provided with a pipeline inlet and outlet through hole, so that a relatively closed space can be formed inside the hub and the blades of the generator set, and the internal airflow circulation heating of the generator set is realized.
The first technical scheme is as follows: providing a wind generating set, which comprises a cabin, a hub cover, blades and the wind generating set blade deicing system; the air blower and the heating device are both arranged in the engine room, an air inlet and an air outlet are further formed in the hub wind shield, and a pipeline between the heating device and the one-way multi-air slip ring passes through the air inlet; one end of the circulating air suction pipe penetrates through the air outlet and leads to the inside of the hub cover, and the other end of the circulating air suction pipe is communicated with the blower; the pipeline heater is arranged on a flange on the side of the cabin through a heating device bracket.
The second technical scheme is as follows: the second solution differs from the first solution in that the blower and the heating device are both located in the hubcap, specifically: providing a wind generating set, which comprises a cabin, a hub cover, blades and the wind generating set blade deicing system; the blower and the heating device are both positioned in the hubcap and are mounted on a cabin side flange through a blower and heating device mounting bracket.
The third technical scheme is as follows: the third technical scheme is different from the first and second technical schemes in that the heating device of the wind generating set is a pipeline heater, and specifically: the wind generating set comprises a cabin, a hub cover, blades and the wind generating set blade deicing system; the air blower is arranged in the engine room, and the heating device is a pipeline heater; an air inlet and an air outlet are also formed in the hub wind shield, and a pipeline between the blower and the heating device passes through the air inlet; one end of the circulating air suction pipe is communicated with the inside of the wheel hub cover, the other end of the circulating air suction pipe is communicated with the air blower, and the circulating air suction pipe passes through the air outlet; the pipeline heater is mounted on the cabin side flange through a mounting bracket of the pipeline heater.
The invention has the following beneficial effects:
1) the invention designs a one-way multi-air slip ring channel structure which can guide hot air flow generated by a heating device to 3 blades. The technical problem that hot air flow is introduced from the cabin to the blades is solved, compared with the prior art, the number of heating devices is reduced, the heating devices are transferred into the cabin (or a hub cover) from the blades, the integration of heating and air supply devices is realized, the equipment safety is higher, the maintainability is stronger, and the cost is lower;
2) the straight-through air slip ring device provided by the invention solves the problem of conveying hot air flow of the blade from the hub to the inside of the blade, and avoids the damage to a pipeline (or an air baffle) when the blade rotates and runs in a variable pitch mode.
3) The blade overflow device provided by the invention is provided with the air guide and protection device, so that the airflow sent from the cabin to the blades overflows from the blades, and the low-wind-resistance airflow circulation is realized; impurities in the blade can be effectively prevented from entering the hub;
4) the invention designs a hub wind shield which is made of transparent materials and is provided with a pipeline inlet and outlet through hole, so that a relatively closed space can be formed inside a hub and blades of a generator set, the circular heating of air flow inside the hub and the blades is realized, and meanwhile, the pipeline through hole designed on the hub wind shield can facilitate the passing of a hot air conveying pipeline and an air flow circulating pipeline.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a blade deicing system of a wind generating set according to embodiment 1.
FIG. 2 is a schematic view of a one-way multiple air slip ring and conductive slip ring mounting arrangement.
Fig. 3 is a structural schematic diagram of a hub wind deflector.
Fig. 4 is a schematic view of a blade root baffle configuration.
FIG. 5 is a schematic view of a wind turbine generator system according to embodiment 2.
FIG. 6 is a schematic view of a wind generating set according to embodiment 3.
1 is a cabin, 2 is a hub cover, 3 is a blade, 4 is a blade ventilating duct, 5 is a blower, 6 is a heating device, 6b is a duct heater, 7 is a blade root baffle, 8 is an overflow hole, 9 is a through air slip ring, 10 is a conductive slip ring, 11 is a one-way multi-air slip ring, 12 is a circulating suction pipe, 13 is a hub wind shield, 14 is a bracket I, 15 is a duct leading to the one-way multi-air slip ring of the heating device, 16 is a mounting bracket of the heating device of embodiment 1, 16a is a mounting bracket of the heating device of embodiment 2, 17 is a mounting bracket of the blower of embodiment 1, 17a is a mounting bracket of the blower of embodiment 2, 18 is a mounting bracket of the blower and the heating device of embodiment 2, 19 is a mounting bracket of the duct heater of embodiment 3, 21 is an air inlet of the one-way multi-air slip ring, 22 is a conductive slip ring cable, 23 is a shifting fork bracket, 24 is a ventilating duct leading to the multi-air slip ring on the rotor side, 25 is a one-way multi-air slip ring rotor, 26 is a second bracket, 31 is a manhole, 32 is a blade root baffle air inlet hole, 33 is a protective net, 41 is a hub left half wind shield, 42 is a hub right half wind shield, 43 is a cooling air vent, 44 is an air inlet, 45 is an air outlet, and 46 is a wind shield fixing device.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example 1
The deicing system comprises an air blower 5, a heating device 6, a one-way multi-air slip ring 11 and three blade ventilating ducts 4, wherein the one-way multi-air slip ring 11 comprises an air inlet 21 communicated with the multi-air slip ring, a one-way multi-air slip ring rotor 25 and a ventilating duct 24 communicated with the multi-air slip ring rotor side and going to blades; an air inlet communicated with a multi-air-slip ring 11 is communicated with an air outlet of the heating device 6 through a pipeline 15, a ventilating pipeline 24 communicated with the blades at the rotor side of the multi-air-slip ring is respectively communicated with a blade ventilating pipeline 4, and a through air-slip ring 9 is respectively arranged in the ventilating pipeline 24 communicated with the blades at the rotor side of the multi-air-slip ring; the one-way multi-air slip ring 11 is mounted on a first support 14, and the first support 14 is mounted in the hub cover 2.
The one-way multi-air slip ring 11 comprises a rotor part and a stator part, wherein the rotor part comprises a first bracket 14, a one-way multi-air slip ring rotor 25 and a one-way multi-air slip ring rotor side ventilation pipeline 24 going to the blades; the stator part comprises an air inlet 21 communicated with a plurality of air slip rings.
The blade root baffle 7 is further included, as shown in fig. 3, a manhole 31, a blade root baffle air inlet 32 and an overflow hole 8 are formed on the blade root baffle 7; the manhole 31 is a maintenance man access passage, the blade ventilation pipeline passes through the blade root baffle air inlet 32, and a protective net 33 is installed at the overflow hole.
The blade root baffle air intake hole 32 is a circular plate with a plurality of circular holes.
Example 2
The wind generating set comprises a cabin 1, a hub cover 2, blades 3 and a blade deicing system, wherein the blade deicing system comprises an air blower 5, a heating device 6, a one-way and multi-air slip ring 11 and three blade ventilating ducts 4, the one-way and multi-air slip ring 11 comprises an air inlet 21 for the one-way and multi-air slip ring, a one-way and multi-air slip ring rotor 25 and a ventilating duct 24 for the one-way and multi-air slip ring rotor side to the blades; an air inlet communicated with a multi-air slip ring 11 is communicated with an air outlet of a heating device 16 through a pipeline 15, a ventilation pipeline 24 communicated with the blades at the rotor side of the multi-air slip ring is communicated with a blade ventilation pipeline 4, and a through air slip ring 9 is respectively arranged in the ventilation pipeline 24 communicated with the blades at the rotor side of the multi-air slip ring; the one-way multi-air slip ring 11 is mounted on a first bracket 14, and the first bracket 14 is mounted in the hubcap 2.
The wheel hub further comprises a conductive slip ring 10, wherein the conductive slip ring 10 is installed in the wheel hub through a second bracket 26, and the first bracket 14 and the second bracket 26 are integrated.
The device also comprises a shifting fork bracket 23 for mounting the conductive sliding ring 10, wherein the shifting fork bracket 23 is of a tubular structure, and the conductive sliding ring cable 22 passes through the tubular structure.
The blade root baffle 7 is further included, as shown in fig. 3, a manhole 31, a blade root baffle air inlet 32 and an overflow hole 8 are formed on the blade root baffle 7; the manhole 31 is a maintenance man access passage, the blade ventilation pipeline passes through the blade root baffle air inlet 32, and a protective net 33 is installed at the overflow hole.
The blade root baffle air intake hole 32 is a circular plate with a plurality of circular holes.
A hub wind shield 13 is arranged between the engine room 1 and the hub cover 2, and a cooling air vent hole 43 is formed in the hub wind shield 13.
The air-cooled generator further comprises a circulating air suction pipe 12, the air blower 5 and the heating device 6 are both arranged in the engine room 1, an air inlet 44 and an air outlet 45 are further formed in the hub wind shield 13, and a pipeline between the heating device 6 and the one-way multi-air slip ring 11 passes through the air inlet 44; one end of the circulating air suction pipe 12 penetrates through the air outlet 45 and leads into the hub cap 2, and the other end of the circulating air suction pipe 12 is communicated with the air blower 5.
The one-way multi-air slide ring 11 structure is divided into a rotor side and a stator side, wherein a one-way multi-air slide ring rotor 25, a first support 14, a second support 26 and a ventilation pipeline 24 which is communicated with the multi-air slide ring rotor side and goes to the blades belong to the rotor part and rotate along with the hub when the blades rotate; the shift fork support 23, the air inlet 21 with one-way and multiple-way air slip rings, the conducting slip ring cable 22 and the like are stator side parts and keep static state when the blades rotate. When the device works, hot air enters the one-way multi-air slip ring 11 through the air inlet 21 on the stator side and is respectively sent to the three blades 3 through the 3 ventilation pipelines 24.
Wheel hub deep bead 13 adopts transparent material preparation, the equipment maintenance of being convenient for observes, the design has business turn over pipeline through-hole (cooling air ventilation hole 43, income wind gap 44 and air outlet 45), can make generating set's wheel hub, blade 3 inside form a relatively inclosed space, realizes its inside air current circulation heating, and the income wind gap 44 and the air outlet 45 of this wheel hub deep bead 13 design can make things convenient for the passing through of steam conveying pipeline and air current circulation aspiration channel simultaneously. As shown in fig. 4, the hub wind deflector 13 is assembled by two left and right half plates, which are assembled by two upper and lower wind deflector fixing devices 46.
The wind generating set described in this embodiment has the main operation principle: after cold air extracted from a hub by a blower 5 arranged in a cabin through a circulating suction pipe 12 is heated by a heating device 6, the cold air is distributed to 3 blades 3 through a through multi-air slip ring 11, hot air distributed by each blade 3 is blown to the blade tip area through a blade root baffle 7 and a blade ventilating duct 4 through a through air slip ring 9, hot air blown to the blade tip area returns through a cavity inside a web plate, the hot air flows back into the hub from an overflow device and returns to the blower through the circulating suction pipe 12, circulating heating of air in an internal sealed space of the hub and the 3 blades is achieved, and heating and deicing of the blades and the hub are achieved. The air flow returning to the hub from the overflow device is the air flow cooled by the blade tip, and the cooled air flow is sucked into the blower through the circulating suction pipe 12 and enters the next circulation.
Example 3
The present embodiment provides a wind turbine generator system, and is different from embodiment 1 in that the blower 5 and the heating device 6 are both located in the hubcap 2, and the blower 5 and the heating device 6 are mounted on the nacelle-side flange through a blower and heating device mounting bracket 18. The hub wind deflector 13 is therefore free of air inlets 44 and outlets 45. A relatively closed space is formed inside a hub and blades 3 of the generator set, and a blower 5 directly sucks cooling air from a hub cover 2.
Example 4
The embodiment provides a wind generating set, and is different from embodiments 1 and 2 in that the heating device is a pipe heater 6 b; an air inlet 44 and an air outlet 45 are also formed in the hub wind shield 13, and a pipeline between the blower 5 and the heating device 6 passes through the air inlet 44; one end of a circulating air suction pipe 13 is communicated with the inside of the hub cover 2, the other end of the circulating air suction pipe 12 is communicated with the blower 5, and the circulating air suction pipe 12 passes through an air outlet 45; the duct heater 6b is mounted to the nacelle-side flange via a duct heater mounting bracket 19.
The pipeline type heating device that this embodiment provided can effectively reduce heating device weight, promotes heating efficiency.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A wind generating set comprises a cabin, a hub cover and blades and is characterized by further comprising a deicing system, wherein the deicing system comprises an air blower, a heating device, a one-way and multi-air slip ring and three blade ventilating ducts; an air inlet communicated with the multi-air-slip ring is communicated with an air outlet of the heating device through a pipeline, a ventilating pipeline communicated with the blades on the rotor side of the multi-air-slip ring is respectively communicated with a ventilating pipeline of the blades, and a through air-slip ring is respectively arranged in the ventilating pipeline communicated with the blades on the rotor side of the multi-air-slip ring; the one-way multi-gas slip ring is arranged on a first support, and the first support is arranged in the hub cover; a hub wind shield is arranged between the engine room and the hub cover, and a cooling air vent hole is formed in the hub wind shield; the air blower and the heating device are both arranged in the engine room, an air inlet and an air outlet are further formed in the hub wind shield, and a pipeline between the heating device and the one-way multi-air slip ring passes through the air inlet; one end of the circulating air suction pipe penetrates through the air outlet and leads to the inside of the hub cover, and the other end of the circulating air suction pipe is communicated with the air blower.
2. The wind generating set according to claim 1, further comprising a blade root baffle, wherein the blade root baffle is provided with a manhole, a blade root baffle air inlet hole and an overflow hole; the manhole is a maintenance man access passage, the blade ventilation pipeline passes through the blade root baffle air inlet, and a protective net is installed at the overflow hole.
3. The wind generating set of claim 2, wherein the air inlet hole of the blade root baffle is a circular plate with a plurality of circular holes.
4. The wind generating set of claim 1, further comprising a conductive slip ring, wherein the conductive slip ring is mounted on a second bracket, the second bracket is mounted in the hubcap, and the first bracket and the second bracket are integrated.
5. The wind generating set of claim 4, further comprising a yoke support mounting the conductive slip ring, the yoke support being a tubular structure through which a cable of the conductive slip ring passes.
6. The wind generating set of claim 1, wherein the heating device is a duct heater; a pipeline between the blower and the heating device passes through an air inlet; the pipeline heater is mounted on the cabin side flange through a mounting bracket of the pipeline heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011975.4A CN112727713B (en) | 2021-01-06 | 2021-01-06 | Blade deicing system of wind generating set and wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110011975.4A CN112727713B (en) | 2021-01-06 | 2021-01-06 | Blade deicing system of wind generating set and wind generating set |
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| CN112727713A CN112727713A (en) | 2021-04-30 |
| CN112727713B true CN112727713B (en) | 2022-05-24 |
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